xfj151 -磁性介孔二氧化硅纳米颗粒掺杂染料的随机激光实验研究

IF 1.7 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Brazilian Journal of Physics Pub Date : 2025-10-02 DOI:10.1007/s13538-025-01890-y

Longwu Li, Zhen-Zhen Shang, Xiaofei Dong, Xinmeng Yu

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引用次数: 0

摘要

我们的实验研究重点是探索在光泵激励下无序活性xfj151磁性介孔二氧化硅纳米颗粒薄膜的可见随机激光现象。结果表明，这些系统的随机激光特性源于系统内部的多次光散射，产生与等离子体激发和局域光子场相关的激光光谱。这种机制促进了可见波长的激光行为。此外，在这些薄膜中观察到的发射强度和激光阈值的变化归因于不同波长下随机微腔的光子局域化强度的差异。这些激光特征来自于xfj151磁性介孔二氧化硅纳米颗粒薄膜中光子的局域化对激光微腔模式的限制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Experimental Studies on the Random Lasing of Dye Doped in XFJ151-Magnetic Mesoporous Silica Nanoparticles

Our experimental study has focused on exploring visible random lasing phenomena in disordered active XFJ151-magnetic mesoporous silica nanoparticle thin films under optical pump excitation. The results reveal that the random lasing characteristics, which stem from multiple light scattering within these systems, generate lasing spectra associated with plasma excitation and localized photon fields. This mechanism facilitates lasing behavior at visible wavelengths. Furthermore, variations in emission intensity and shifts in the lasing threshold observed in these films are attributed to differences in photon localization intensity across random microcavities at distinct wavelengths. These lasing features originate from the confinement of laser microcavity modes due to photon localization within the active XFJ151-magnetic mesoporous silica nanoparticle thin film.

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来源期刊

Brazilian Journal of Physics 物理-物理：综合

CiteScore

2.50

自引率

6.20%

发文量

189

审稿时长

6.0 months

期刊介绍： The Brazilian Journal of Physics is a peer-reviewed international journal published by the Brazilian Physical Society (SBF). The journal publishes new and original research results from all areas of physics, obtained in Brazil and from anywhere else in the world. Contents include theoretical, practical and experimental papers as well as high-quality review papers. Submissions should follow the generally accepted structure for journal articles with basic elements: title, abstract, introduction, results, conclusions, and references.